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**Zero Leakage:** The valve's tight sealing design minimizes leakage
Easy Installation: Designed for quick and convenient installation
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the NCO PSH500A offers versatility and compatibility with different electrical systems
6111001 | BLOCK VENT SWITCH | Burnham Boiler Used on_WTGO Series **Zero Leakage:** The valve's tightBLOCK VENT SWITCH NCO 6111001 for Burnham Boiler The NCO 6111001 BLOCK VENT SWITCH is an essential component for ensuring the safe operation of Burnham Boilers. This switch plays a crucial role in detecting when the boiler is operating correctly and when it needs maintenance. The switch is activated when the flue gas temperature rises too high or when there is a loss of draft in the chimney. When activated, the switch will shut off the boiler's
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